diff --git a/sys/compat/freebsd32/freebsd32_proto.h b/sys/compat/freebsd32/freebsd32_proto.h
index 3a59abc99dcf..7a259a84a221 100644
--- a/sys/compat/freebsd32/freebsd32_proto.h
+++ b/sys/compat/freebsd32/freebsd32_proto.h
@@ -1263,9 +1263,9 @@ struct freebsd11_freebsd32_fhstat_args {
 };
 struct freebsd11_freebsd32_kevent_args {
 	char fd_l_[PADL_(int)]; int fd; char fd_r_[PADR_(int)];
-	char changelist_l_[PADL_(const struct kevent32_freebsd11 *)]; const struct kevent32_freebsd11 * changelist; char changelist_r_[PADR_(const struct kevent32_freebsd11 *)];
+	char changelist_l_[PADL_(const struct freebsd11_kevent32 *)]; const struct freebsd11_kevent32 * changelist; char changelist_r_[PADR_(const struct freebsd11_kevent32 *)];
 	char nchanges_l_[PADL_(int)]; int nchanges; char nchanges_r_[PADR_(int)];
-	char eventlist_l_[PADL_(struct kevent32_freebsd11 *)]; struct kevent32_freebsd11 * eventlist; char eventlist_r_[PADR_(struct kevent32_freebsd11 *)];
+	char eventlist_l_[PADL_(struct freebsd11_kevent32 *)]; struct freebsd11_kevent32 * eventlist; char eventlist_r_[PADR_(struct freebsd11_kevent32 *)];
 	char nevents_l_[PADL_(int)]; int nevents; char nevents_r_[PADR_(int)];
 	char timeout_l_[PADL_(const struct timespec32 *)]; const struct timespec32 * timeout; char timeout_r_[PADR_(const struct timespec32 *)];
 };
diff --git a/sys/kern/systrace_args.c b/sys/kern/systrace_args.c
index a3e28aed31f9..8e34456d2fb2 100644
--- a/sys/kern/systrace_args.c
+++ b/sys/kern/systrace_args.c
@@ -3209,7 +3209,7 @@ systrace_args(int sysnum, void *params, uint64_t *uarg, int *n_args)
 	case 560: {
 		struct kevent_args *p = params;
 		iarg[0] = p->fd; /* int */
-		uarg[1] = (intptr_t)p->changelist; /* struct kevent * */
+		uarg[1] = (intptr_t)p->changelist; /* const struct kevent * */
 		iarg[2] = p->nchanges; /* int */
 		uarg[3] = (intptr_t)p->eventlist; /* struct kevent * */
 		iarg[4] = p->nevents; /* int */
@@ -8749,7 +8749,7 @@ systrace_entry_setargdesc(int sysnum, int ndx, char *desc, size_t descsz)
 			p = "int";
 			break;
 		case 1:
-			p = "userland struct kevent *";
+			p = "userland const struct kevent *";
 			break;
 		case 2:
 			p = "int";
diff --git a/sys/sys/sysproto.h b/sys/sys/sysproto.h
index 2a89ee0770f3..5aadd3f0990b 100644
--- a/sys/sys/sysproto.h
+++ b/sys/sys/sysproto.h
@@ -1735,7 +1735,7 @@ struct mknodat_args {
 };
 struct kevent_args {
 	char fd_l_[PADL_(int)]; int fd; char fd_r_[PADR_(int)];
-	char changelist_l_[PADL_(struct kevent *)]; struct kevent * changelist; char changelist_r_[PADR_(struct kevent *)];
+	char changelist_l_[PADL_(const struct kevent *)]; const struct kevent * changelist; char changelist_r_[PADR_(const struct kevent *)];
 	char nchanges_l_[PADL_(int)]; int nchanges; char nchanges_r_[PADR_(int)];
 	char eventlist_l_[PADL_(struct kevent *)]; struct kevent * eventlist; char eventlist_r_[PADR_(struct kevent *)];
 	char nevents_l_[PADL_(int)]; int nevents; char nevents_r_[PADR_(int)];
@@ -2649,9 +2649,9 @@ struct freebsd11_fhstat_args {
 };
 struct freebsd11_kevent_args {
 	char fd_l_[PADL_(int)]; int fd; char fd_r_[PADR_(int)];
-	char changelist_l_[PADL_(struct kevent_freebsd11 *)]; struct kevent_freebsd11 * changelist; char changelist_r_[PADR_(struct kevent_freebsd11 *)];
+	char changelist_l_[PADL_(const struct freebsd11_kevent *)]; const struct freebsd11_kevent * changelist; char changelist_r_[PADR_(const struct freebsd11_kevent *)];
 	char nchanges_l_[PADL_(int)]; int nchanges; char nchanges_r_[PADR_(int)];
-	char eventlist_l_[PADL_(struct kevent_freebsd11 *)]; struct kevent_freebsd11 * eventlist; char eventlist_r_[PADR_(struct kevent_freebsd11 *)];
+	char eventlist_l_[PADL_(struct freebsd11_kevent *)]; struct freebsd11_kevent * eventlist; char eventlist_r_[PADR_(struct freebsd11_kevent *)];
 	char nevents_l_[PADL_(int)]; int nevents; char nevents_r_[PADR_(int)];
 	char timeout_l_[PADL_(const struct timespec *)]; const struct timespec * timeout; char timeout_r_[PADR_(const struct timespec *)];
 };